Description

175199213

• Product

• • Fits ’84-’99 Harley-Davidson® big twin chasis and custom frames designed for Evolution® big twin engines
  • +30% increase in HP and torque over stock
  • Short stroke for less vibration and longer engine life
  • Shorter than stock engine height for easy installation
  • Does not include carb or ignition; use stock or aftermarket carburetor and air cleaner
  • S&S big-fin cylinders with more fin area and exclusive oil jets to cool bottom of the pistons
  • High volume, high-pressure (HVHP) oil pump
  • Durable S&S 3-pc. flywheels
  • Performance 585 cam & valve springs
  • 4-1/8″ x 4-1/8″ bore and stroke
  • 9.8:1 compression ratio
  • Made in the USA